Sight for firearms



Nov. 23, 1948. H. F; MOSSBERG SIGHT FOR FIREARMS Filed April 17, 1944 ull-mill!) WWW Wm n m Z M T Patented Nov. 23, 1948 SIGHT FOR FIREARMS Harold F. Mossberg, New Haven, Conn, assignor to 0. F. Mossberg & Sons, Inc., New Haven, Conn., a corporation of Connecticut Application April 17, 1944, Serial No. 531,471

4 Claims.

This invention relates to improvements in sights for firearms and more particularly to an adjustable firearm sight having improved elevation and windage adjusting provisions for the sight member thereof.

One object of this invention is to provide an improved firearm sight which is constructed of a minimum number of parts, capable of being produced at a relatively low manufacturing cost, and has sight member elevation and windage adjusting means in its structure. I

Another object is to provide in a firearm sight of the above nature improved means to adjustably support the sight member for transverse adjustment and to adjustably connect the same to a firearm for vertical adjustment.

A further object of this invention is to provide an improved sight for firearms which will be relatively inexpensive to manufacture, simple in construction, of a minimum number of parts, compact, ornamental in appearance, and very efficient and durable in use.

With the above and other objects in view, which will appear as the description proceeds, there has been illustrated in the accompanying drawings a form in which the features and principles of this invention may be embodied in practice.

In the drawings:

Figure 1 is a side elevational view of a sight for firearms and in which the features and principles of this invention are embodied;

Figure 2 is a rear View of the same;

Figure 3 is a bottom view of the same;

Figure 4 is a sectional view taken on the line 4--4 of Figure 1;

Figure 5 is a sectional view taken on the line 55 of Figure 2; and

Figure 6 is a sectional view taken on the line 6I5 of Figure 1.

Referring now to the drawings wherein like reference numerals designate like parts throughout the several views, the numeral II denotes a supporting base illustrated as being generally U- shaped in cross-section with a sheet metal bottom portion I2 which is arcuate in form to fit the curvature of a firearm part I3 such as a receiver, or barrel, indicated by dotted lines in Figures 1 and 2. The base II is elongated to extend lengthwise along the firearm part I3 and may be firmly secured thereto by screws I4 and I5 which pass through the base bottom I2 and screw-thread into the firearm part I3.

A socket, for receiving the pyramid head I6 of a screw I1, is formed in the base bottom II by striking up ears I8, I9, 2I, and 22 from the material of the bottom I2, the ears l8 and I9 bein opposed and adapted to engage one pair of op- Dosite sides of the screw head I6 and the ears 2I and'22 being opposed and adapted to engage the other pair of opposite sides of the screw head 16. The ears I8, I9, 2I, and 22 are angularly disposed to extend along and in engagement with the re spective sides of the screw head I6 so as to firmly grip it to prevent it from turning, A finger engageable clamp nut 23 is provided adapted to screw-thread along the threaded portion 24 of the screw IT.

The outer edges of the sides 25 and 26 of the U-shaped base I I are provided with guide grooves 21, 28, and 29, 3I, respectively, the grooves 21 and 29 and the grooves 28 and 3I being in alignment transversely in respect to the length of the base II. The aligned grooves 21, 29 and the aligned grooves 28, 3I are equally spaced from the axis of the screw I! and are adapted to receive the spaced apart prongs 32 and 33 respectively of a sight supporting leaf 34. When the prongs 32 and 33 are disposed in the respective grooves 21, 29 and 28, 3I they may be clamped therein, in any vertically adjustable position, by the clamp nut 23, which engages the said prongs 32 and 33 and binds them against the base sides 25 and 26 when it is screwthreaded onto the screw H, the threaded portion 24 of the screw II extending beyond and between the prongs 32 and 33 for this purpose.

The sight supporting leaf 34 is preferably made of sheet metal and extends beyond the prongs 32 and 33 to form a portion 35 and is bent at substantially right angles to the portion 35 to extend over and beyond the axis of the firearm part I3 to form a horizontal portion 36. The portion 35 of. the sight supporting leaf 34 extends along the side of the firearm part I3 substantially parallel to its axis. The horizontal portion 36 of the sight supporting leaf 34 is bent upwardly at one of its side edges, preferably along its rear edge as shown, to provide a vertical portion 31 which is disposed transversely to the axis of the firearm part I3. The plane of the portion 31 is at right angles to the plane of the prongs 32 and 33.

The vertical portion 31 of the sight supporting leaf 34 is provided with a horizontally elongated opening 38 through which a threaded stem 39 of a sight member 4I extends. The sight member M in this instance, is in the form of a peep disc having a rearwardly extending annular flange 42 thereabout and a centrally located sighting aperture therethrough. A nut 43 is threadingly adapted to receive the stem 39 whereby the vertical leaf portion 31 may be clamped between the nut 43 and the sight member 4| by rotation of the stem 39 to screw thread it into the nut 43. The threaded opening 44 provided in the nut 43 to receive the stem 39 is vertically off-center of the nut 43 whereby the lower edge 45 of the nut will be in engagement with the horizontal portion 36 of the sight supporting leaf to prevent the nut 43 from turning when the stem 39 is rotated.

The sight member 4| may be adjusted transversely of the axis of the firearm part I 3 by loosening the stem 39 in the nut 43 and shifting the sight member 4| to the position desired. The sight member 4| may also be adjusted vertically by loosening the clamp nut 23 and raising or lowering the portion 35 of the sight supporting leaf 34. By means of the above arrangement the sight supporting leaf 34 constitutes a one-piece means to adjustably support the sight member 4| for transverse, or windage, adjustment and to adjustably connect the sight member 4! to a firearm part for vertical, or elevation, adjustment.

Due to the minimum number of parts constituting the firearm sight of this invention, the same is relatively simple in construction and may be produced at a relatively low manufacturing cost. Due to the novel construction and arrangement of parts the sight of this invention is very eflicient and durable in use.

It will be understood that the novel features and principles of this invention may be embodied in other specific forms without departing from the spirit and essential attributes thereof, and it is therefore desired that the present embodiment be considered in all respects as illustrative, and not restrictive, reference being had to the claims rather than to the foregoing description to indicate the scope of the invention.

Having thus fully disclosed the invention, what is claimed as new and for which it is desired to secure Letters Patent, is:

1. In a sight for firearms, a base member U- shaped in cross-section, the bottom portion of said base member being adapted to extend along a firearm part and be secured thereto, a sight member, and a one piece sight member support comprising a vertical first portion extending across said base, a horizontal second portion extending from the upper edge of said first portion, and a third portion extending along and vertically from a side edge of said second portion, means to secure the first portion of said support to and upon the outer edges of the U-shaped base for vertical adjustment, said sight member having a threaded stud adapted to extend through said third portion, and a nut screw-threaded onto said stud, said nut having a lower portion extended into engagement with said second portion of said support to prevent the nut from turning when said sight member is rotated.

2. In a sight for firearms, a base member U- shaped in cross-section, a threaded stud having a pyramid head extending outwardly from th bottom of said U-shaped base, ears struck up from the bottom of said U-shaped base into engagement with the sides of the pyramid head to prevent said stud from turning, a sight member, a sight member support having a bifurcated portion extending across the arms of said U-shaped base and straddling said stud, and a threaded nut screw-threaded onto said stud to clamp said bifurcated portion to the arms of said U-shaped base.

3. In a sight for firearms, a base member U- shaped in cross-section, a threaded stud having a pyramid head extending outwardly from the bottom of said U-shaped base, ears struck up from the bottom of said U-shaped base into engagement with the sides of the pyramid head to prevent said stud from turning, a sight member, a sight member support having a bifurcated vertically disposed first portion, a horizontally disposed second portion extending from the upper edge of said first portion, and a vertically disposed third portion extending from a side edge of said second portion, said first portion extending across the arms of said U-shaped base and straddling said stud, a threaded nut screwthreaded onto said stud to clamp said bifurcated first portion to the arms of said U-shaped base.

4. In a sight for firearms, a base member U- shaped in cross-section, a threaded stud having a pyramid head extending outwardly from the [bottom of said U-shaped'base, ears struck up from the bottom of said U-shaped base into engagement with the sides of the pyramid head to prevent said stud from turning, a sight member, a sight member support having a bifurcated vertically disposed first portion, a horizontally disposed second portion extending from the upper edge of said first portion, and a vertically disposed third portion extending from a side edge of said second portion, said first portion extending across the arms of said U-shaped base and straddling said stud, a threaded nut screwthreaded onto said stud to clamp said bifurcated first portion to the arms of said U-shaped base, said sight member having a threaded stud adapted to extend through said third portion, and a nut screw-threaded onto said stud, said nut having a lower portion extended into engagement with said second portion of said support to prevent it from turning when said sight member is rotated.

HAROLD F. MOSSBERG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,970,623 Redfield Aug. 21, 1934 2,094,705 Jefferson Oct. 5, 1937 

